disable rhel grub fallback?

gregrwm <[email protected]>
Newsgroups gmane.user-groups.linux.tclug
Message-ID <CAD+dB9AqRaWJK7MK_qnGusov8rMB5iqUWf_sp93W0XFH35M=0A@mail.gmail.com>
the centos8 grub setup is bugging me, i'm trying to add a working entry to
boot the pfsense iso from disk on a rhel8 install, and when testing my
menuentry, whenever it fails, within a few short seconds grub quickly boots
into linux again.  how do i disable that?  i want it to just sit there and
leave the error message showing until i'm ready.

and if anyone has a working entry for booting the pfsense iso that would be
nice too

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